Centrifugal clarifying separator



28 1929- D. s. PATERsoN ET AL CENTRIFUGAL CLARIFYING SEPARATOR Filed July 25, 1927 5 Sheets-Sheet ATTORNEYS.

CENTRIFUGAL CLARIFYING SEPARATOR Filed July 25, 1927 3 sheets-sheet 2 C NVENTCRS ATTORNEYS.

May 28, 1929. D. s. PATERSON ET AL fw CENTRIFUGAL GLARIFYING SEPARATOR Filed July 25, 1927 3 Sheebs-SheetI 5- gwedy MVENTQR:

v. BY l M l WTTORNEYS 'I Immun I Patented May 28, 1929.

, UNITED STATES 1,714,986.V PATENT oFFI'cE.

DUGALD S. PATERSON AND GUSTAVKB. PETSCHE, OF PHILADELPHIA, PENNSYLVANIA, -.ASSIGrNOItS TO THE NATIONAL ACME COMPANY, OF CLEVELAND, OHIO, A COE- IPORATION OF OHIO.

cENTaIFUGAL CLARIFYING SEPARATOR.

Applicationslea July 25,

Our invention relates to a `new and useful centrifugal clarifying separator and more particularly to a separator whereby commingled liquids of different densities and specilic gravities, as well as of different consistencies and viscosities may be effectively and accurately separated;

Our invention further relates toa centrif-l ugal separator of this general character, particularly designed for the separation of commingled liquids of different densities, where the difference in densities is relatively small, that is, for the separation of such commin- .led liquids being heretofore verydiflicult,

1f not impossible, of accomplishment, on a large commercial scale.

Our invention further relates to adevice of this general character `which in addition to separating commingled liquids also simultaneouslyclarifies or filters the same, thus f oducing pure and clear distinct liquids fiom an impure mixture or emulsion.

Our invention further relates to a centrifugal liquid separator of a relatively large volume capacity and one which may be run continuously for relatively long periods of time, .without frequent cleaning or dismantling.

To the above ends, our invention consists of a suitable casing or housing, a central bowl rotatably disposed therein, a plurality of concentric cylinders positioned within said bowl and forming a series of concentric, intercommunicating compartments, an inlet leading into said bowl for the admission of the liquids to be clarified and separated, outlets for the separated, clarified liquids communicating with the respective compartments Iin said bowl, adjustable driving means for rotating said bowl and its adjuncts, and means for. stopping the rotation of said bowl at will.

Our invention further consists of means for firmly'securing the bowl in position while 'the same is rotated, and novel lmeans'for removing the bowl from the casing for the purposes of cleansing and repair.

Our invention further consists `in a clarifying separator which is compact and strong and which is easily dismantled or assembled, there being a maximum number of detachable parts which can be easily and quickly asl sembled.

In the accompanying drawings: Fig. 1,

1927. Serial No. 208,209.

represents an end elevation of a clarifying separator embodying our invention.

F 1g2, represents avertical section of a. clarlfymg separator embodying our invention, certain parts being shown in elevation.

Figure 3, represents a fragmentary, sec# tional view of the upper portion of Fig. 2, showing the detailed construction.

Figure 4, represents a plan view of the bifurcated lever shown in the lower portion of F ig. 2. Y

Figure 5, represents a bottom plan view of the bottomplate shown inzthe lower portion of Fig'. 2. 'I

Fig. 6, represents ona reduced scale a. top plan view of the upperI disc shown in Fig. 3.

Fig. 7, represents on a reduced scale, a frag-- mentary perspective view of the upper disc and superimposed collar shown in Figure 3.

For the purpose ofillustrating our inven-` tion, we have shown in the accompanying drawings one form thereof which is at present preferred by us, since the same has been found in` practice to give satisfactory and reliable results, although it is to be un.der.. stood that the various instrumentalities of which .our invention consists can be variously arranged and organized and that our invention is-not limited to the precise arrangement and organization of the instrumentalities as herein shown and described. g y

Referring to the drawings, inwhich lik reference numerals indicate corresponding parts, 1 designates a clarifying separator embodying o ur invention comprising a casing or'housing 2'having a suitable support 01 base 3. 4 designates a bowl mounted within the casing 2 and having,the lower base plate 'or disc 7 and the upper disc or cap member 6 which has the vertical, cylindrical extension 8. To the outside of the casing 2 is secured. a sliding bracket 9 on which is mounted the 95 `motor 10 having the 'drive shaft 11 which carries the hub 12, on which is detachably secured a Vdriving pulley 13 by means of the nuts 14. The bracket 9 maybe vertically ad- -j usted with respect to the casing 2 by means of the hand wheel 15 coacting with the screw `threaded member 16 which is guided in the stationary bracket 17 suitably secured to the lower portion of the casing 2. A belt 18 passes over the driving pulley 13,.the idler pulley 19 secured to the bracket 9, and over the idler pulleys 2O secured to the lowerpori 7. A `brake lever 27 operated by an external handle member 28 is provided in proximity to the bottom plate 7 of t-he bowl 4 and is adapted to bear upwardly on the brake shoe 29 which in turn acts on said bottom plate 7 to stop the rotation of the bowl 4. The brake.

lever 27 is provided with ast-0p lug 30 adapted to abut againstthe inner face of the casing 2, to limit the upward movement of said brake lever 27 toprevent any possible displacement of the bowl 4 when the brake is applied. A lever arm 31, pivoted at 32, is provided with the earn 33, v"adapted to coact with the lever arm 34 pivoted at 35 andl provided with the bifurcatedend 36 which in turn engage corresponding openings 37 in the bottom plate or disc 7, to raise the bowl 4 by disengaging the head 25 of thespindle 22 from the socket 26 and by disengaging the pins 23 from the holes 24 in the lower side of the dise or base plate 7 of the bowl 4f The` door 5 may then be swung openwi'th the bowl 4 supported on the bifurcated. ends 36 of the lever 34 andsecured to the inside of the door 5 by the strap or ring`38 which prevents said bowl from fallmg. A

On the top of the casing 2 is detachably mounted the sectional cover 39 comp-rising a series of superimposed pans 40, 41, and 42, said pans being detachab'ly mounted upon each other and being adapted to serve as receptacles for the separated and-L'clarified liquids as Well as forany overflow emerging from the interior of the casing 2. The pans 40, 41, and 42 are also provided with the detachable nozzles or discharge outlets 43, 44,-

and 45 respectively, as will be understood fromFig. 2. A gravity oil feed 46 is mounted on the bearing pan 40, whereby oil is supplied to the interior bearing and other working parts of the clarifying separator through the channel 47. Within the bowl 4 is positioned a cylinder 48 mounted upon the lower disc or plate 49 which has a plurality of radial ports 50, said cylinder 48 being secured at its upper end'to an upper disc 51 of a relatively larger diameter than said lower disc 49. Within the cylinder 48 is provided a screen or filter member 52also secured to said lower and upper d1scs 49 and`51 respectively, as will be understood from Fig. 2. Within the screen 52 is positioned the inner tubular member 53 secured at its lower end to the disc 49 and eX- i tending upwardly throughthe casing 2' and into the sectional cover39 in proximity to and parallel wlth the lvertical extension 8 of the cap member 6, aswill beunderstood from Fig.v 2. Into the tubular member 53 extends the inlet tube 54, the upper end of which communicates with the inlet 55 having the stopvalve 56 and the lowerend of which is provided with a discharge nozzle portion 57. Intermediate the upright extension 8 of the cap 6 and the inner tubular member 53 is positioned cylindrical sleeve 58 secured at its lower end to the upper disc 51 and at its up-per end to the collar 59. `The inverted bearing cap 60 engages the pendant flange 61 of the bottom 62 of the pan 40 while the horizontal extensions 63 and the vertical extension 64 respectively thereof are adaptedto bear against the upright extension 8 of the cap 6. VVit-hin the inverted bearing cap or collar 60 is disposed the inner sliding collar 66 in which is positioned. the spring 67, said sliding collar being adapted to take up the play and vibration resulting from the rapid rotation of the bowl 4 and its adjuncts within the casing 2 and the sectional cover 39. A door 79 is lprovided in the lower portion of the easing 2 through which access may be had to the spindle 22 and its adjuncts.

In Fig. 3, we have shown on an enlarged scale a detail view of the upper portion of Fig. 2 in which a dam or distance ring 80, sup-` ported on the annular shoulder 81 and held in position by the collar 82, extends into the opening 73 to regulate the width or radius of said opening according to the viscosity or density of the fluid being treat-ed. Thus, it a very heavy, dense fluid, like fuel or-eru-de oil, is being treated, the distance ring S0 is altogether dispensed with,V while distance rings 8O of varying sizes may be employed when liquids of less density' such as lubricat ing oil or the like are being treated.

The operation is as follows:

The mixed fluids, say, oil and water, to be i separated and clarified are through the inlet 55 into the tube 54 from which they emerge through the nozzle 57 into the tube 53 which is secured at its lower end to the disc or plate 49-which has the radial ports 50. The fluid flows through said ports 50 into the outer compartment 69 inter- .mediate thebowl 4 and the inner casing 48.

. layer adjacent the inner surface of the bowl 4 while. the oil or lighter material. forms an lnner elrcular layer adjacent the outer surface of the inner casing 48 with a neutral introduced zonev formed between said layers of water the casing 48. The water, on the other hand, 10

.disc 51 and the collar 7 2c and rises in the openemerges through the ports 72 inthe upper ing 73 intermediate the upper extension 8 of the cap 6 and cylindrical sleeve 58 untill it emerges through the upper opening 74 into the lowermost pan and out through the nozzle 43. The oil entering the compartment 71 through the opening 70 is strained or tiltered through the screen 52 into the coni- .partment 75, and rises in the opening 76 intermediate the tubular member 53 and the cylindrical sleeve 58 until it flows out through the opening 77 into the pan 41 and but through thenozzle 44. Since the initial separation of the water and the oil which takes place in the compartment' 69 is not quite perfect, that is, since the oil entering the compartment 71 through the opening 70 and ultimately the compartment through the screen 52 may still havefa certain percentage of water, openings 68 are provided in the inner casing 48 through which any water separated from the oil in the compartments 71 and 75 may flow back into the compartment 69 where the outenlayer of water is originally formed. An opening 78 is provided intermediate the sleeve v83 which is secured at its -lower end to the upper end of the inner tubular member 53 and t-lie inlet tube 54 through which any excess fluid introduced into the bowl 4 may escape. Thus, if the screen 52 or any of the openings in the bowl 4 are clogged so that the normal flow of the fluid is r tarded, the opening 78 provides an outlet through which said fluid may escape into the -pan 42 and out through the overfiow nozzle 45.

To facilitate the use of a relatively large bowl 4 and its adjuncts, with the attendant advantages of less frequent cleaning, and of,

more perfect separation and. clarification of theI mixed liquids, we have provided means for the easy manipulation of the bowl 4 and its adj uncts. Thus,`when it is desired to clean the bowl 4 or to interchange any of the screens or cylinders therein, it is merely necessary to remove the pans 40, 41, and 42, forming the sectional cover 39 and then to raise the bowl 4 from engagement with the pins 23 and the head 25 of the spindle 22 by-meanssof the lever 31 and its adjuncts in the manner shown and described. lThe door 5 is then swung open with bowl 4 resting on the bifurcated ends 36 of the lever 34 and secured to the inside of the door 5 bythe ring or strap 38,'the bifurcatedends 36 engaging the notches 37 in the bottom of theplate 7l serving to prevent the rotation of the bowl 4 while the cap 6 thereof is unscrewed. The screen 52 and the cylinder 48 can then be removed for replacement and repair. When it is desired to replace vthe bowl 4 in position it is merely necessary to close the door and then to lower the handle 31 (into the position shown in Fig. 2) thus withdrawing the bifurcated ends 36 from engagement with the notches 37 and the holes 24 as well as the socketv 26 again engage the pins 23 and the head 25 of the spindle 22 and the bowl is again in the position shown in F ig. 2 and'is again ready for use.

B y detacliably mounting the drive pulley 13 on the spindle 12 permanently keyed to the drivevsliaft 1l we are enabled to employ drive pulleys of different sizes to vary the speed at which the bowl 4 is rotated, when a single speedniotor is used.

It will now be apparent that we have devised a novel and useful construction of centrifugal clarifying separator which embodies the features of advantage enumerated as desirable in the statement of the invent-ion and the above vdescription and while we have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages. l

Having thus described our invention, what we claim as new and desire to secure by LettersPatent is 1. In a device of the character stated, a housing, a bowl rotatably mountedtherein, adjustable means for driving said bowl, a

plurality 'of concentric, communicating cyling a series of annular, concentric compartmentsintercommunicating with each other and with said bowl, screening means in one of saidl compartments, a sectional cover for Y said bowl and housing, comprising a series of superimposed pans, discharge outlets for said pans, there being corresponding exit openings leading from the upper portions of said respective compartments to said respective pans, adjustable means to vary the ra' 4means for disengaging said dius of one ofsaid exit openings, and an intake inlet -for 'the upper end of said bowl communicating with the central one of said compartments. y A

3. In a device of the character stated, a housing, a bowl rotatably mounted therein, means for driving said bowl,V sectional vcovers for said bowl and housing, comprising a series of superimposed pans, discharge spouts for said pans, manually operable bowl from said driving means, and manually operable means for stopping the rotation of said bowl, said bowl comprising inner and outer concentric cylinders the outer of said cylinders "being permanently secured to the base of said bowl,

' a detachable cover for said bowl, a series of intermediate concentric cylinders secured to upper and lower discs of different diameters within said bowl and forming concentric compartments intercommunicating with each other and with said bowl, said discs having ports therein, screening means within one of said compartments, and an intake inlet for the upper portion of said bowl, there being exit openings leading from said compartments to said pans. p l

4. In a clarifying separator, a housing, a

a sectional cover for said housing comprising a series of superimposed pans, discharge spouts for said pans, and a bowl rotatably mounted within said housing, said bowl comprising an iimer, central cylinder and an outer cylinder,

said outer cylinder being permanently se-.

cured to the baseof said bowl, said inner, central cylinder extending upwardly through said housing into said sectional cover,.an intake inlet Jfor the upper portion of said central cylinder, a cover ably mounted on said outer cylinder, intermediate communicating cylinders within said bowl detachably secured to lower and upper discs and forming concentric, intercommunicating compartments, the lower of said discs being of a lesser diameter thanj said upper discv and having radial ports therein leading from said central cylinder to the outermost of said compartments, there being exit openy tacliably secured to lower and upper discs and forming concentric, Aintercommunicating compartments, said lower disc being of a lesser diameter, than said upper disc and beth for said bowl detachosaid discs having radial-ports thereinlead-v I ing to and from the outermost of said compartments, there being exit openings leading from said respective concentric compartments to said respective pans.

housing, a bowl therein comprising an innner central 'cylinder and an outer cylinder, Said outer cylinder being, permanently secured to the base of said bowl, said inner, central cylinder extending upwardly through said hous-` ing into a sectional pan-formed cover, an intake inlet for the upper portion of said central cylinder, a sectional detachably mounted, pan formed cover for said bowl and housing, intermediate communicating cylinders withy '70 6. In a device of the character stated,.a

in said bowl detachably secured to lower and.v

upper discs and forming concentric, intercommunicating compartments, screening means in one of said compartments, said lower disc being of a lesser diameter than said upper disc and both of said discshavingC radial ports therein leading to and from the outermost of said compartments, there being eXit openings leading from said respective concentric compartments to lsaid respective pans, and means for regulating the size of one of said exit openings.'

7. In a clarifying separator, a housing, a sectional cover for said housing comprising a series of superimposed pans, discharge spouts for each of'said pans, and a bowl rotatably mounted within said housing, said bowl comprising aninner, central cylinder and an outer cylinder, said outer cylinder being permanently secured to the base of said bowl, said inner, central. cylinder extending upwardly through said housing into said sectional cover, an intake inlet for the upper portion of said central cylinder, intermediate communicating cylinderswithin said bowl,

detachably secured to lower and upper discs and forming concentric, intercommunicating compartments therebetween, said .lower disc being of a lesser diameter than said upper disc and both of said discs having ports therein leading to andv from the outermost of 'said compartments, a cover for said bowl detachably mounted on the top of said outer cylinder and having an upper vertical extension, and a cylindrical ,sleeve intermediate said eXten-. Sion and said inner central cylinder, there being openings leading from said concentric compartments to said pans.

8. In a device of the character stated,l a housing, a bowl rotatably mounted therein, adjustable means for driving said bowl, a pluralityl of concentric cylinders Within said centric exit openings leading. from the upper portions of said respective compartments to said respective pans, adjustable means to vary partments, and means common to .the upper portion of said bowl and the lower portion of ,said sectional cover for yieldably guiding said bowl and its adjuncts in position while the same are rotate 9.` In a device of the character stated, a housing, a bowl rotatably mounted therein, adjustable meansfor driving said'bowl, a plurality of compartments in -said bowl intercommunicating with each other and with sai-d bowl, a s'ectionalfcover for said bowl and housing comprising a series of superimposed pans, discharge outlets for said pans, there being openings leading from said compartments into said pans, means forv varying the size of one of said openings, an intake inlet for ,said bowl, screening means in one of said compartments, and means for yieldably retaining and guiding the upper portion of said bowl and its adjuncts while the bowl is rotated.

10. In a device of .the character stated, a bowl comprising a series of annular compartments, means for'causing the liquid treated therem to travel in opposite directions, a ported disk in the upper end of said bowl and overhanging the outer portion of the outer compartment and opening adjacent to the outer wall thereof, and a cover for ,said bowl having an upward vtubular extension within which an exit passage vfor said liquid is formed.

11.A jIn a device ofthe character stated, a bowl comprising a series of annular compartments, means for causing the liquid -treated therein to travel in opposite directions, and a radially ported disk in the upper end of sald bowl and overhanging the outer portion of the outer compartment and `opening adjacent to the outer wall thereof.

12. In a device-of the character stated, a

bowl comprising a series of annular com.

partments, means for causing the liquid treated therein to travel in opposite directions, and a ported disk in the lower end of said bowl and opening adjacent to the inner wall of said outer compartment.

13. In a device of the character stated, a bowl comprising a series of annular compartments, means for vcausing the liquid treated therein to travel in opposite directions', a radially ported disk in the upper end of said bowl and overhanging the outer.por tion of the outer compartment and opening adjacent to the outer wall tohereof, and a radially ported disk in the lower end of said bowl land opening adjacent to the inner wall of said 'outer compartment.

14.v In a 'device of the character described,

a bowl comprising la plurality of annular intercommunicating compartments, means for causing the liquid to ytravel in opposite directions therein', a pair of ported disks in said bowl adjacent to the upper an-d lower ends thereof and both opening into the outer compartment, and extended passageways above the bowl and leading from said several compartments.

15. In a device of the character described,

' a bowl comprising a plurality of annular in tercommunicating compartments, means for causing the liquid to travel in opposite directions therein, screening means in one of said compartments, a pair of ported disks in `said bowl adjacent to the' upper and lower ends thereof and both opening into the outer compartment, and extended passageways above the bowl and leading from said several compartments. V f

16. In a device of the character described, a bowl comprising a plurality of annular 1ntercommunicating compartments, means for causing the liquid to travel in opposite di-l rections therein, a pair of disks in said bowl adjacent to the upper and lower ends there-` of, one of greater diameter than the other and each having radially opening ports, and a both opening into ,the outer compartment, and extended passagewaysA above the bowl and leading from said several compartments.

17.v In a device of the character described,

a bowl comprising a plurality of annular intercommunicating compartments, means for causing tthe liquid to travel in opposite d1- `rections therein, a pair .of ported disks in said bowl adjacent to the upper and lower ends thereof and both opening-into the outer compartment, extended passageways above the bowl and leadingfrom said several compartments, and sectional, superimposed and spouted pan-formed chambers for said bowl.

into which said extended passageways o pen. 18. In a device of the character descrlbed,

a bowl comprising a plurality, of annular in? tereommunlcating compartments, means for causing the liquid to travel in opposite directions therein, a pair of ported disks in said bowl adjacent to the upperI and lower ends thereof and both opening into the outer compartnient, extended passa eways above the bwl and leadi-ng from sai several compartments, and means in one ofsaidlexten-ded passageways for regulating the area-thereof.

19. In a device of the class described, a bowl for separating and purifying liquids comprising a Vchamber-forming outer cylinder having a bottom and a cover, a palr of disks located adjacent to the top and bottom of the cylinder, the ,top disk having greater diameter than said bottom disk and each 'having radial ports colnmunicating with the chamber of said cylinder, the radial ports of the top disk communicating with the chamber ofthe cylinder nearer the outer wall than the radial ports of the lower disk, an inner i tom of the cylinder, the top disk lhaving j per d isk opening beyond said cylinder.

cylinder connected with andvv communicating 'with the radial ports of the lower disk, and a plurality of intermediate intercommunicati -ing'cylinders carried by said disks and in- -cluding screening means.

20. In a device of the class described, a.

bowl for separating and purifying liquids comprising a chamber-forming outer cylinlder having a bottom' and ay cover, a pair of disksl located adjacent tothe top and botwall than the radial ports of the lower disk,

an inner cylinder connected withfand communicating with the radial ports of the lower disk, andl a plurality of intermediate intercommunicating cylinders carried by said disks and including screening nieans, the ports ofthe lower disk opening substantially in line with the lower 'end of one of said intermediate cylinders and the ports of theup- 21. In a device of the class described, a bowl for separating and purifyingv liquids comprising a chamberforming outer cylinder having va bottom anda cover, a pair of disks located adjacent to the top. and bottom of the cylinder, the top disk having greater' diameter than said bottomdisk and each havfing radial ports communicating with the than the radial ports of the lower disk, anv inner cylinder connected with 'andcommunider having a bottom and a cover, a pair ofl cham er of said cylinder, the radial ports of the 'top disk communicating with the chamber of the cylinder nearer the outer wall eating with the radial ports of the lower disk, and a 'plurality of intermediatexintercom- -municatin cylinders carried 4by said disks and inclu ing screening. means, the radial ports of the lower'disk having greater 'didisk. d

22. In av device of the class described, 'a

disks "located adjacent to the top and bottom of the cylinder, the top disk having greater ber of thecylinder nearer the outer wall than l .diameterthan said bottomdisk and each. having radial ports communicating with the chamber of said cylinder, the radial. ports ofthe top disk communicating with the chamthe radial ports of the `lower disk, an inner cylinder connected with and communicating with-.the'radialports of the lower disk, and a plurality of intermediate intercommunicating' cylinderscarried by said disks and in'- cluding screening'means, the ports ofthe lower disk opening substantially in line with the lower end of one of said intermediate cylinders and the ports of theupper disk opening beyond said cylinder, said intermediate cylinder having ports adjacent toits upperV end. l,

es. in a 'device "of uit dass desribed, a

bowl for separating and purifying lliquids comprising 'a `c-hamber-forming outer cylinder having a bottom and a cover, a pair of disks located adjacent to the top and bottom of the cylinder, the top disk having greater diameter than said bottom disk and each having radial' ports communicating with. the chamber of said cylinder, the radial ports of the top disk communicating withl the chamber of the cylinder nearer the outer wall than the radial ports of the lower disk, an inner cylinder connected with and communisoA eating with the radial ports of the lower disk,

land a plurality of intermediate intercommunicating cylinders carried by said disks and including screening means, the ports of the lower disk opening substantially in line with the lower end of one of said intermediate cylinders and the ports of the-upper disk opening beyond said cylinder, said intermediate cylinder having two sets of spaced ports adjacent to its upper end.'

24. In a device of the classdescribed, a

bowl for separating and purifying Aliquids comprising a chamber-forming outer cylinder having a bottom anda cover, said cover havino an -upward tubular extension, a pair of dis islocated adjacent to the top andbottom 'of the cylinder, the top disk having greater diameter than said bottom disk and each havingfradial ports communicating with the chamber of said cylinder, the radial ports of the top disk communicating with the cham- ,i

ber of the cylinder nearer the outer wall than vthe .radial ports of the lower disk, an inner cylinder connected with and communicating with the radial ports of the lower diskand ex- ,tending4 into said tubular extension, anini .termediate cylinder connected-'with said' top ameter than the radial ports of the .uplpcr disk and located between said extensions and forming passageways therebetween, oneopening into t e outer cylinder'and thgother into i an intermediate cylinder, and a. plurality of `intermediate interc0mmi'ini catingl cylinders carried by said disks and including screening means.

` 25. In a device of." the class, described, a'

bowl for separating and purifying liquids j tom of the cylinder, the top disk having greater diameter than said bottom disk and v each having radial ports communica-ting with the'chamber of said cylinder, theradial ports of the top disk communicating withI the chainber of the cylinder nearer the outerwall than l' the radial ports of the vlower disk, an inner cylinder connectedwith and communicating Y mediate cylinder connected with said top disk and located between said extensions and forming vpassageways therebetween, one opening into the outer cylinder and the other into an intermediate cylinder, a plurality of intermediate intercommunicating cylinders carried by said disks and including screening means, and means located'in said tubular eX- tension for varying the area thereof.

26. In a device of the class described, a bowl for separating and purifying liquids comprising a chamber-forming outer cylinder having a bottom and a removable cover provided with an upward tubular extension, a pair of disks located adjacent to the top i and 'bottom `of said outer cylinder, the top disk having larger diameter than `the bottom dlsk and each having radial ports, an inner cylinder connect'ed with and communicating with the radial ports of the lower disk and lproject-ing into the tubular extension -of the removable cover, an intermediate cylinder between said tubular extension and inner cylinder and forming passages therebetween, an intermediate cylinder carried by said disks With the radialports of the lower disk opening into the chamber of the outer cylinder adjacent to the wall of said .intermediate cylinder and with the ports of the upper disk opening into the chamber of the outer cylinder beyond the wall of the intermediate cylinder and adjacent to the wall of the outer cylinder,y said intermediate cylinder having a plurality of ports located adjacent to the top thereof,and a screening cylinder carried by said disks intermediate said inner and intermediate cylinders..

27. In a device of the class described, a

bowl for separating and purifying liquids comprising a chamber-forming outer cylinder having a bottom and a removable cover provided with an upward tubular extension, a -jair of disks located adjacent to the top and ottom of said outer cylinder, the top disk having larger diameter than the bottom disk and each having radial ports, an inner cylinder connected with and communicating with the radial ports of the lower disk and pro-` jecting into the tubular extension of the removable cover, an intermediate cylinder between said tubular extension and inner cylinder and forming passages therebetween, detachable means' positioned within the tubular extension for varying the' area of the passage thereof, an intermediate cylinder carried by said disks with the radial ports of the lower disk opening into the chamber of the outer cylinder adjacent to the wall of said intermediate cylinder and with the ports of the up- Kper disk opening into the chamber of the outcrcylinder beyond the wall of the intermediate cylinder and adjacent to the wall of the outer cylinder, said intermediate cylinder having a plurality of ports located adjacent to the top thereof, and a screening cylinder carried by said disks intermediate said innenandainprojecting into the tubular extension of the' removable cover, an intermediate cylinderbetween said tubular extension and'inner cylr inder and forming passages therebetween, detachable means positioned within the tubular extension for varying the area. ofthe passage thereof, an intermediate Vcylinder carried by said disks with the radial ports of the lower disk opening into the chamber of the outer cylinder adjacent to the wall of said intermediate cylinder and with the ports of the upper disk opening into the chamber ofI the outer cylinder beyond the wall of the intermediate cylinder and adjacent to the wall of the outer cylinder, said intermediate cylinder having a plurality of ports located adjacent tothe top thereof, a screening cylinder carried by said disks intermediate said inner and intermediate cylinders, and sectional, superimposed, pan-formed chambersm communication withI various passages of sald bowl.

29. In a device of the class described, a

a pair of disks located adjacent to the top and bottom of said outer cylinder, the top disk having largerdiameter than the bottom disk and each having radial ports, an inner cylinder connected with and communicating with the radial ports of the lower disk and projecting into the tubular extension of the removable cover, an'intermediate cylinder between said tubular extension and inner cylinder and forming passages therebetween, detachable means positioned within the tubular extension for varying the area ofthe passage thereof, an intermediate.cylinder carried by said disks with the radial ports of the lower disk opening -intothe chamber of the outer, cylinder adjacent to the wall of said intermediate cylinder and with the ports of the upper disk openinginto the chamber of theouter cylinder beyond the wall of the intermediate cylinder and adjacent to the wall of the outer cylinder, said intermediate cylinder having a plurality of ports located adjacent to the top thereof, a screening cylinllD der carried by said disks intermediate said inner and intermediate cylinders, sectional, superimposed, pan-forined chambers in communication with various passages of said bowl, means for rotating said bowl, and means for separating the bowl from its rotating means and swinging the same laterally relatively thereto.

'30. In a device of the class described, a bowl for separating and purifying'liquids comprising a chamber-forming outer cyliiider having a bottom and a removable cover provided with an upward tubular extension, a pair of disks located adjacent to the top and bottom of said outer cylinder, the ,top disk having larger diameter than the bottom disk and leach having radial ports, an inner cylinder connected with and communicating with theradial ports of the lower disk and projecting into the tubular extension of the removable cover, an interinedi-ate cylinder between said .tubular extension and inner cylinder and forming passages therebetween, detachable means positioned within the tubular extension for varying the area of the passage thereof, an intermediate cylinder carrier by said disks with the radial ports of the lower disk opening into the chamber of the outer cylinder adjacent'to the wall of said intermediate cylinder and with the ports of the upper disk opening into the 'chamber of theouter cylinder beyond-the wall of the intermediate cylinder and adjacent to the wall of the outer cylinder, said intermediate cylinder having a plurality ofjports located adjacent to the top thereof, a screening cylinder carried by said disks intermediate said inner and intermediate cylinders, sectional, superimposed, pan-forined chambers in communication-` with various passages of -said bowl, means for rotating said bowl, means for separating the bowl from its rotating means and swinging the same laterally relatively thereto, and means for braking the bowl -andin position to engage the same without separating the same ,from its rotating means.

31. In a device of the class described, a

bowl for separating and purifying liquids.

comprising a chamber-forming outer cylinder havng a bottom and a removable cover provided with an upward tubular extension, a pair of disks located adjacent to the top and bottom of said outer cylinder, the top disk having larger diameter than the bottom disk and each having radial ports, an inner cylinder connected with and communicating with the radial ports ofthe lower disk and projecting into the tubular extension of the remo?,

able cover, an"intermediate cylinder between.- said Jtubular extension and inner cylinder and forming passages therebetween, an intermediate cylinder carried by said disks with the radial ports of the lower disk opening into the chamber of the outer cylinder adjacent to the-wall of 'said intermediate cylinder and with the ports of the upper disk opening intobowl for separating and purifying liquidsl comprising a chamber-forming,outer cylinvder having a bottom and a removable cover provided with an upward tubulai'fi-Xtension,

a pair of disks located adjacent t the top and bottom of said outer cylinder,`the top disk having larger diameter than the bottom disk and each having radial ports, an inner cylinder connected with and communicating with the radial ports of the lower disk and projecting into the tubular extension of thel removable cover, an intermediate cylinder between said tubular extension and inner cylinder and forming passages therebetween, au y intermediate cylmder carried by said disks with the radial ports of thelowerdisk opening into the chamber of the outer cylinder adjacent to 'the wall of said intermediate cylinder and with the ports of the upper disk opening into the 'chamber of the outer cylinder beyond the wall of the intermediate cylinder' and adjacent to the wall of the outer cylinder, said intermediate cylinder having a plurality of ports located adjacent to the top thereof, a screening cylinder carried by said Vdisks intermediate said inner and interniediate cylinders, a single speed motorfor rotating said bowl, means for adjusting the saine relatively to the bowl, thereby to permitv the speed of the bowl to be varied by interchangeable pulleys, and means for separat-A ing the bowl from its rotating means and swinging the same laterally relatively thereto'.

33. In a device of the character described,

-a houisng, a bowl rotatably mounted there'- in, means' for driving said bowl, means for engaging the bowl for separating it from its driving means, thereby to permit it to be swung laterally out ofthe housing, means for engaging the bottoni ofthe bowl for braking the same without interfering with the connection thereof with itsdriving means, said boyl comprising a cylindrical casing.. having a r o erts, an inner cylinder carried by vand cpminunicating with the radial poitsof the lqwer disk and extending into ysaid tubularex-.E j tension, an intermediate ported cylinder carried by said disks, and screening means carf" o ttom and a removable cover provided, "wit aitubular, upward extension, a pair of' .i'sksv within said casing and havingfrad ial;y

ried by said disks and located between said intermediate and inner cylinders,

34. In a device of the character described, a housing, a bowl rotatably mounted therevin, means for driving said bowl, means for engaging'the bowl for separating it from its driving means, thereby tol permit .it to be"A swung laterally out of the housing, means for engaging the bottom of the bowl for braking the same without interfering with the connection thereof with its driving means, said bowl comprising a cylindrical casing having a bottom and a removable cover provided with a tubular, upward extension, a pair of disks within said casing and having radial ports, an inner cylinder carriedlby and communicating with the radial ports of the lower disk and extending into said tubular extension, an intermediate ported cylinder carried by said disks, screening means carried by saiddisks and located between said intermediateand inner cylinders, an intermediate in, means for driving said bowl, means for;

cylinder between said tubular extension and \inner cylinder and forming al plurality of passages from the bowl, one in communication with the radial ports ofthe upper disk and the other in communication with the chamber around the linner cylinder, and

means for supplying liquid to the inner cyl inder.

35. In a device of the character described,

a housing, a bowl rotatably mounted thereer disk andV extending into said tubular ex-l tension, an intermediate ported cylinder carried by said disks, screening means carried by said disks and located between said intermediate and inner cylinders, an intermediate cylinder between said tubular extension and inner cylinder and forming a plurality of passages from the bowl, one in communication with the radial ports of the upper disk and the other in communication ,with the chamber around the inner cylinder, means for supplying liquid to the inner cylinder,

` and a series of superimposed pans covering said housing and in communication with the bowl.

36. In a device of the character stated, a housing, a bowl rotatably mounted therein, means for driving said bowl, a plurality of concentric, communicating cylinders within said bowl forming a series of compartments 65 intercommunicating with each other and with said bowl, a screen in one of said compartments, a sectional cover for said bowl and housing, comprising a series of superimposed pans, discharge outlets for said pans, and an intake inlet for the upper end of said bowl,

there being openings leading'from the upper ends ofsaid compartments into said pans.

37. In a device of the character stated, a housing, a bowl rotatably mounted therein, means -for driving said bowl, a plurality of A compartments in said bowl intercommunieating with each other and with saidbowl, a

sectional cover for said bowl and housing com'- prising a series of superimposed pans, discharge outlets for said pans, there being openings leading from said compartments into said pans, means for varying the size of one of said openings, an intake inlet for said bowl,

screening means in one of said compartments,

and means for yieldably retaining and gulding the upper portion of said bowl and its adj uncts while the bowl is rotated.

. 88. In a device of the character described, a

housing, a bowl rotatably mounted therein (and comprising a plurality of annular intercommunicatingcompartments having means for causing the liquid to ,travel-in opposite directions therein', screening means in one of said compartments, means at the top and bottom-of said bowl and both having communication with the outer compartment, one adjacent to the outer wall thereof and the other adjacent to the inner wall thereof, the means at the bottom of said bowl being in communication with the inner compartment, and means for rotating said bowl.

39. In a device ofthe character described, a

housing, a bowl rotatably mounted therein and comprising a plurality of annular intercommunicating compartments having means for causing the liquid to travel in opposite directions therein, screening means in one of said compartments, means at the top and bottom-l of said bowl and both having communication with the outer compartment, one adjacent to the outerl wall thereof and the other adjacent to the inner wallthereof, the means 4Vat the bottom of said bowl beingin communication. with'the inner compartment, means 115 for rotating said bowl, and sectional, superimposed pans for said bowl andl housing vand communicating with lthe several compartments of the bowl. l

40. In a device of the character described, 12othe combination of a rotating bowl for separating and'purifying lliquids having a plurality of annular Iported compartments to cause theliquid to have an extended travel in opposite directions, and a pair of disks' in the -125 bowl of'differentdiameters and provided with radial ports, whereby the liquid enters through the radial ports of the disk of smaller diameter and discharges the heavier ofthe i two liquids through the radial ports of the y disk of larger diameter.

41. In a-device Kof the character described, the combination of 'a rotating bowl for separating and purifying liquids having a plurality of annular ported compartments to cause the liquid to have an extended travel in opposite directions, screening means in one 10 of said compartments for purifying the liqaid, and@ pair of disks in the bowl of different diameters and provided with/:radial ports, whereby the liquid enters through the DUGALD s. PATERsoN. eUs'rAv B. rETscHE.

radial ports of the disk 0f smaller diameterl5 I l 

